O'Connor Oil Corp. v. Warber

The issues are: (1) Was parol evidence admissible to vary or explain the terms of the written note, and (2) are the findings of the trial court against the great weight and clear preponderance of the evidence.

The first issue must be resolved against the plaintiff-appellant, O’Connor.

The obligation of Warber was to pay the $1,200 “on demand when sales agreements are terminated.” The written terms of the note, without explanation, do not identify the agreement or agreements, whether they were written or oral, nor their conditions of breach or dates of termination.

The parol-evidence rule…